To george s



. (No Model.) J. H. PINLEY.

PNEUMATIC ELEVATOR.

No. 512,873. I Patented Jan. 16, 1894.

W INVENTOR.

ATTORNEYS.

uuuuuuuuuuuu c.

UNITED STATES PATENT OFFICE.

JAMES H. FINLEY, OF BUFFALO, NEWV YORK, ASSIGNOR OF THREE-FOURTHS TOGEORGE S. GATOHELL, DENNIS M. DOYLE, AND- JAMES MURPHY, OF

SAME PLACE.

PNEUMATIC ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 512,873, dated January16, 1894.

Application filed October 16, 1893.

To all whom it may concern:

Be it known that I, JAMES H. FINLEY, a

citizen of the United States, residing at the city of Buffalo, in thecounty of Erie and State of New York, have invented a new and usefulImprovement in Pneumatic Elevators, of which the following is aspecification.

This invention relates to pneumatic grain elevators and has for itsobject to produce an elevator of this character, which is simple inconstruction and which will elevate grain and similar material in bulk,in an expeditious manner.

In the accompanying drawings:Figure 1 l 5 is a longitudinal sectionalelevation of my improved grain elevator. Fig. 2 is an end elevationthereof. Fig. 3 is a fragmentary elevation of the main grain spout andits outlet valve.

Like letters of reference refer to like parts in the several figures.

A represents an elevated receiver or hopper provided in its bottom withan outlet opening a, from which the grain is conducted to a grain scaleor storage bin, and in its top with an air outlet opening a.

B represents a main delivery spout, arranged preferably in an inclinedposition and extending with its lower or discharge end into the receiverA. The lower end of this 0 spout is provided with an automatic orgravity valve 1) for preventing. the admission of air into the spoutthrough its discharge opening. This valve is hung at its upper end tothe upper edge of the discharge opening of 3 5 the spout, in the usualmanner and preferably consists of several horizontal sections 1) whichare hinged together one above the other, as shown in Figs. 1 and 3. Whena small quantity of grain is in the spout its weight 40 opens only thelowest section of the valve, to

permit the grain or'other material to escape.

The remaining sections are successively opened as the amount of grain inthe spout increases.

0 represents afan or other suitable exhaust device. The eye of the fancase is connected with the upper end of the main grain spout by asuction pipe or assage F and the blast Serial No. 488,230. (No model.)

or discharge passage f of the fan opens into the top of the receiver.

G represents a flexible elevator tube opening at its upper end into themain grain spout and provided at its lower end with a suction head gwhich is placed into the body of grain in the hold of a vessel or otherplace from 51 which it is to be elevated. This suction head consistspreferably of several telescopic sections g the joints of which are madeair tight by a flexible covering 72. inclosing said joint.

I represents a deflector which is arranged transversely in the maingrain spout opposite the outlet of the elevator tube and whereby thegrain or other material entering the grain spout is intercepted andseparated from the air current. This deflector is pivoted with one endat one side of the grain spout and its free end is separated from theopposite side of the grain spout by a passage 7/. The width of thispassage can be varied for regulating the force of the suction of the fanor other exhaust device by an adjusting screw J pivoted at its inner endto the deflector and passing with its other end through the suctionpipe, and a thumb nut j applied to the screw and bearing against theouter side of the suction pipe.

The suction of the fan raises the grain through the elevator tube intothe grain spout B where the deflector causes an abrupt turn in the aircurrent whereby the greater portion of the grain is separated from theair, the latter passing to the fan and the grain dropping by gravityintothe grain spout. When a sufficient amount of grain has accumulated inthe grain spout to overcome the weight of the valve, the latter opensand permits the grain to discharge into the receiver.

Any grain which may be carried past the deflector by the air current isdrawn with the latter through the fan case and its blast passageand'delivered into the top of the receiving hopper, where the grainseparates from the air and passes through the lower opening of thereceiver, while the air passes out through the upper openingthereof.'-The blast passage of the fan thus serves as an auxiliary grainspout through which any grain not received by the main spout is carriedinto the receiver.

I claim as my invention 1. In a pneumatic elevator, the combination witha receiver, of an exhaust device having its blast or discharge passageconnected with said receiver, an elevating tube connected with thesuction passage of the exhaust device and a delivery spout entering saidre ceiver and having its receiving end connected with said elevatingtube, substantially as set forth.

2. The combination with the receiver having an air outlet in its top, ofa grain spout having its discharge end connected with said receiver andprovided with an automatic valve, an exhaust device having its suctionpassage connected with the receiving end of the grain spout, and itsblast passage opening into the receiver, and an elevator tube connectedwith the grain spout, substantially as set forth.

3. The combination with the receiver, of a grain spout having itsdischarge end arranged in said receiver and provided with an automaticvalve, an exhaust device having its suction passage connected with thereceiving end of the grain spout and its outlet opening into thereceiver, an elevator tube connected with the grain spout and adeflector arranged in the grain spout opposite the outlet of theelevator tube, substantially as set forth.

4. The combination with the receiver, of a grain spout havingitsdischarge end arranged in said receiver and provided with an automaticvalve, an exhaust device having its suction passage connected with thereceiving end of the grain spout and having its outlet opening into thereceiver, an elevator tube connected with the grain spout, a deflectorarranged in the grain spout opposite the inlet of the elevator tube andpivoted at one end to one side of the grain spout, while its free end isseparated from the opposite side of the grain spout by a passage, and anadjusting device connected with said deflector, substantially as setforth.

5. The combination with the receiver, of a grain spout entering saidreceiver and a gravity valve applied to the discharge end of said spoutand consisting of several pivotally c011- nected sections, substantiallyas set forth.

Witness my hand this 5th day of October, 1893.

JAMES H. FINLEY.

lVitnesses:

CARL F. GEYER, J NO. J. BONNER.

